Type of mechanism: QUARTZ. Display: ANALOGICAL. Material Of Case: STEEL. Colour Of Case: SILVER. Material Of Bracelet: LEATHER. Colour Of Bracelet: VIOLET. Dial Colour:PURPLE. Glass type: MINERAL. Clousure: BUCKLE. Water resistence: NO. Diameter dial: 27MM. Special Functions:Boss has designed these Made-In-Optional glasses thinking about athletes, active in search of high performance accessories. The mount presents a acetate front with flexible rubber rods for comfortable and safe adjustment. The model is enr